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| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/flow.c | 2 |
2 files changed, 6 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 287cfb8..084920a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2000-05-25 Richard Henderson <rth@cygnus.com> + + * flow.c (mark_set_1): Don't record conditionally dead memory. + 2000-05-25 Jan Hubicka <jh@suse.cz> * combine.c (try_combine): Use any_condjump_p, any_uncondjump_p @@ -4252,6 +4252,8 @@ mark_set_1 (pbi, code, reg, cond, insn, flags) invalidate_mems_from_autoinc (pbi, insn); if (GET_CODE (reg) == MEM && ! side_effects_p (reg) + /* ??? With more effort we could track conditional memory life. */ + && ! cond /* We do not know the size of a BLKmode store, so we do not track them for redundant store elimination. */ && GET_MODE (reg) != BLKmode |